The Clinical Proteomic Technologies for Cancer

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<div class="float-right top-right"> <div class="genSitePrintButton"><a href="javascript:window.print()"><i class="fa fa-print" aria-hidden="true"></i> PRINT</a></div> </div> <h1 id="page-title" class="title">Major Histocompatibility Complex, Class I, B Peptide 1</h1> <hr /> </div> <div id="block-system-main" class="block block-system block-system-main" > <div class="content" id="detail_page_content"> <article id="node-27" class="node node-page view-mode-full" about="https://proteomics.cancer.gov/antibody-portal/available-antibodies/antibody-portal" typeof="foaf:Document"> <span property="dc:title" content="Antibody Portal" class="rdf-meta element-hidden"></span> <span property="sioc:num_replies" content="0" datatype="xsd:integer" class="rdf-meta element-hidden"></span> </article>  <div id="search-fields-container_antibody-browse"> <a title="Expand all page details" href="javascript:void(0);" onclick="showAllAntigenDataBlock('open',1)">Expand All</a> - <a title="Collapse all page details" href="javascript:void(0);" onclick="showAllAntigenDataBlock('close',1)">Collapse All</a> </div> <div class="clear"></div> <div id="detail-menu"> <div class="detail-menu-title"><h2>Antibodies</h2></div> <ul> <li class="antibody-name"> <h3><a href="#CPTC-HLA-B-1">CPTC-HLA-B-1</a></h3>  <a class="manageMenuBlock-link" href="javascript:void(0)" id="top-antibody-1" onclick="manageMenuBlock(this.id); showDataBlock('antibody-1',false)">[hide details]</a> <div class="top_links" id="menu-top-antibody-1"> <ul class="sub-menu"> <li><a href="#CPTC-HLA-B-1-Background">Background</a>| <a href="#CPTC-HLA-B-1-Characterization">Characterization Data</a></li> </ul> </div> </li> </ul> <div class="detail-menu-title"><h2>Antigen</h2></div> <ul> <li class="antibody-name"><h3><a href="#Major_Histocompatibility_Complex,_Class_I,_B_Peptide_1">Major Histocompatibility Complex, Class I, B Peptide 1</a></h3> <a title="hide/show details" class="manageMenuBlock-link" href="javascript:void(0)" id="top-antigen" onclick="manageMenuBlock(this.id); showDataBlock('block-antigen')">[hide details]</a> <div class="top_links" id="menu-top-antigen"> <ul class="sub-menu"> <li><a href="#Major Histocompatibility Complex, Class I, B Peptide 1-Background">Background</a>| <a href="#Major Histocompatibility Complex, Class I, B Peptide 1-Characterization">Characterization Data</a>| <a href="#Major Histocompatibility Complex, Class I, B Peptide 1-SOPs">SOPs</a>| <a href="#Major Histocompatibility Complex, Class I, B Peptide 1-Links">Links</a></li> </ul> </div> </li> </ul> </div> <a name="CPTC-HLA-B-1"></a> <div class="well"> <div class="detail-type-header"> <a title="hide/show details" class="manageMenuBlock-link" href="javascript:void(0)" onclick="showDataBlock('antibody-1',true)"> <h4><i class="fa fa-minus icon-antibody-1" aria-hidden="true"></i>Antibody: CPTC-HLA-B-1</h4> </a> </div> <div id="antibody-menu-1" title="Click to display Antibody data" class="block_record_menu_down_icon" onclick="manageMenuBlock('top-antibody-1'); showDataBlock('antibody-1',false)"> </div> <div class="block_record" id="antibody-1"> <a name="CPTC-HLA-B-1-Background"></a> <h5 class="nopadding">Background</h5> <div class="detail-label"><p>Catalog Number:</p></div> <div class="detail-value"><p>CPTC-HLA-B-1</p></div> <div class="clear"></div> <div class="detail-label"><p>Target Antigen:</p></div> <div class="detail-value"><p>Major Histocompatibility Complex, Class I, B Peptide 1</p></div> <div class="clear"></div> <div class="detail-label"><p>Isotype:</p></div> <div class="detail-value"><p>IgG</p></div> <div class="clear"></div> <div class="detail-label"><p>Species:</p></div> <div class="detail-value"><p>Rabbit Recombinant Cloned Antibody</p></div> <div class="clear"></div> <div class="detail-label"><p>Last Updated:</p></div> <div class="detail-value"><p>09/27/2024</p></div> <div class="clear"></div> <div class="detail-label"><p>Antigen Recognition(s):</p></div> <div class="detail-value"><p>Peptide, Endogenous</p></div> <div class="clear"></div> <h5>Purchase</h5> <ul class="url-list"> <a name="CPTC-HLA-B-1-Links"></a> <li class="cart"> <strong>DSHB</strong> <a href="../cart/Q1BUQy1ITEEtQi0x"> CPTC-HLA-B-1 </a> </li> </ul> <a name="CPTC-HLA-B-1-Characterization"></a> <h5>Characterization Data <a title="Compare characterization data" class="show-for-medium-up" href="#" data-open="compareModal" onclick="showCompare(656);">[Compare Characterization Data]</a></h5> <div id="characterization_results_0"> </div> <div class="top-link"><a title="Back to top of page" href="#top">[top]</a></div> <a name="CPTC-HLA-B-1-SOPs"></a> <div class="clear"></div> </div> </div> <a name="Major_Histocompatibility_Complex,_Class_I,_B_Peptide_1"></a> <div class="well"> <div class="detail-type-header"> <a title="hide/show details" class="manageMenuBlock-link" href="javascript:void(0)" onclick="showDataBlock('block-antigen',true)"> <h4><i class="fa fa-minus icon-block-antigen" aria-hidden="true"></i>Antigen: Major Histocompatibility Complex, Class I, B Peptide 1</h4> </a> </div> <div id="antigen-menu-down" title="Click to display Antigen data" class="block_record_menu_down_icon" onclick="manageMenuBlock('top-antigen'); showDataBlock('block-antigen',false)"> </div> <div class="block_record" id="block-antigen"> <a name="Major Histocompatibility Complex, Class I, B Peptide 1-Background"></a> <h5 class="nopadding">Background</h5> <p> <div class="detail-label"><p>NCI Identification Number:</p></div> <div class="detail-value"><p>00497</p></div> <div class="clear"></div> <div class="detail-label"><p>Antigen Name:</p></div> <div class="detail-value"><p>Major Histocompatibility Complex, Class I, B Peptide 1</p></div> <div class="clear"></div> <div class="detail-label"><p>CPTC Name:</p></div> <div class="detail-value"><p>CPTC-HLA-B Peptide 1</p></div> <div class="clear"></div> <div class="detail-label"><p>Aliases:</p></div> <div class="detail-value"><p>Major Histocompatibility Complex, Class I, B; HLA Class I Histocompatibility Antigen, B Alpha Chain; HLAB; MHC Class I Antigen HLA-B Alpha Chain; MHC Class I Antigen HLA-B Heavy Chain; MHC HLA-B Transmembrane Glycoprotein; MHC HLA-B Cell Surface Glycoprotein; Leukocyte Antigen Class I-B; HLA Class I Antigen HLA-B; MHC Class I Antigen SHCHA; Human Leukocyte Antigen B; Ankylosing Spondylitis; MHC Class I Molecule; MHC Class 1 Antigen; B-4901; HLA-B; AS</p></div> <div class="clear"></div> <div class="detail-label"><p>Function:</p></div> <div class="detail-value"><p>HLA-B belongs to the HLA class I heavy chain paralogues. This class I molecule is a heterodimer consisting of a heavy chain and a light chain (beta-2 microglobulin). The heavy chain is anchored in the membrane. Class I molecules play a central role in the immune system by presenting peptides derived from the endoplasmic reticulum lumen. They are expressed in nearly all cells. The heavy chain is approximately 45 kDa and its gene contains 8 exons. Exon 1 encodes the leader peptide, exon 2 and 3 encode the alpha1 and alpha2 domains, which both bind the peptide, exon 4 encodes the alpha3 domain, exon 5 encodes the transmembrane region and exons 6 and 7 encode the cytoplasmic tail. Polymorphisms within exon 2 and exon 3 are responsible for the peptide binding specificity of each class one molecule. Typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. Hundreds of HLA-B alleles have been described. HLA-B (Major Histocompatibility Complex, Class I, B) is a Protein Coding gene. Diseases associated with HLA-B include Severe Cutaneous Adverse Reaction and Spondyloarthropathy 1. Among its related pathways are Actin Nucleation by ARP-WASP Complex and Innate Immune System. Gene Ontology (GO) annotations related to this gene include signaling receptor binding and peptide antigen binding. An important paralog of this gene is HLA-C.Antigen-presenting major histocompatibility complex class I (MHCI) molecule. In complex with B2M/beta 2 microglobulin displays primarily viral and tumor-derived peptides on antigen-presenting cells for recognition by alpha-beta T cell receptor (TCR) on HLA-B-restricted CD8-positive T cells, guiding antigen-specific T cell immune response to eliminate infected or transformed cells (PubMed:25808313, PubMed:29531227, PubMed:9620674, PubMed:23209413). May also present self-peptides derived from the signal sequence of secreted or membrane proteins, although T cells specific for these peptides are usually inactivated to prevent autoreactivity (PubMed:7743181, PubMed:18991276). Both the peptide and the MHC molecule are recognized by TCR, the peptide is responsible for the fine specificity of antigen recognition and MHC residues account for the MHC restriction of T cells (PubMed:29531227, PubMed:9620674, PubMed:24600035). Typically presents intracellular peptide antigens of 8 to 13 amino acids that arise from cytosolic proteolysis via constitutive proteasome and IFNG-induced immunoproteasome (PubMed:23209413). Can bind different peptides containing allele-specific binding motifs, which are mainly defined by anchor residues at position 2 and 9 (PubMed:25808313, PubMed:29531227). Allele B*07:02: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and mainly a Leu anchor residue at the C-terminus (PubMed:7743181). Presents a long peptide (APRGPHGGAASGL) derived from the cancer-testis antigen CTAG1A/NY-ESO-1, eliciting a polyclonal CD8-positive T cell response against tumor cells (PubMed:29531227). Presents viral epitopes derived from HIV-1 gag-pol (TPQDLNTML) and Nef (RPQVPLRPM) (PubMed:25808313). Presents an immunodominant epitope derived from SARS-CoV-2 N/nucleoprotein (SPRWYFYYL) (PubMed:32887977). Displays self-peptides including a peptide derived from the signal sequence of HLA-DPB1 (APRTVALTA) (PubMed:7743181).Allele B*08:01: Presents to CD8-positive T cells viral epitopes derived from EBV/HHV-4 EBNA3 (QAKWRLQTL), eliciting cytotoxic T cell response. Allele B*13:02: Presents multiple HIV-1 epitopes derived from gag (RQANFLGKI, GQMREPRGSDI), nef (RQDILDLWI), gag-pol (RQYDQILIE, GQGQWTYQI) and rev (LQLPPLERL), all having in common a Gln residue at position 2 and mainly hydrophobic amino acids Leu, Ile or Val at the C-terminus. Associated with succesful control of HIV-1 infection. Allele B*18:01: Preferentially presents octomeric and nonameric peptides sharing a common motif, namely a Glu at position 2 and Phe or Tyr anchor residues at the C-terminus (PubMed:14978097, PubMed:23749632, PubMed:18991276). Presents an EBV/HHV-4 epitope derived from BZLF1 (SELEIKRY) (PubMed:23749632). May present to CD8-positive T cells an antigenic peptide derived from MAGEA3 (MEVDPIGHLY), triggering an anti-tumor immune response (PubMed:12366779). May display a broad repertoire of self-peptides with a preference for peptides derived from RNA-binding proteins (PubMed:14978097). Allele B*27:05: Presents to CD8-positive T cells immunodominant viral epitopes derived from HCV POLG (ARMILMTHF), HIV-1 gag (KRWIILGLNK), IAV NP (SRYWAIRTR), SARS-CoV-2 N/nucleoprotein (QRNAPRITF), EBV/HHV-4 EBNA4 (HRCQAIRKK) and EBV/HHV-4 EBNA6 (RRIYDLIEL), confering longterm protection against viral infection (PubMed:19139562, PubMed:18385228, PubMed:15113903, PubMed:9620674, PubMed:32887977). Can present self-peptides derived from cytosolic and nuclear proteins. All peptides carry an Arg at position 2 (PubMed:1922338). The peptide-bound form interacts with NK cell inhibitory receptor KIR3DL1 and inhibits NK cell activation in a peptide-specific way, being particularly sensitive to the nature of the amino acid side chain at position 8 of the antigenic peptide (PubMed:8879234, PubMed:15657948). KIR3DL1 fails to recognize HLA-B*27:05 in complex with B2M and EBV/HHV-4 EBNA6 (RRIYDLIEL) peptide, which can lead to increased activation of NK cells during infection (PubMed:15657948). May present an altered repertoire of peptides in the absence of TAP1-TAP2 and TAPBPL (PubMed:9620674). Allele B*40:01: Presents immunodominant viral epitopes derived from EBV/HHV-4 LMP2 (IEDPPFNSL) and SARS-CoV-2 N/nucleoprotein (MEVTPSGTWL), triggering memory CD8-positive T cell response (PubMed:18991276, PubMed:32887977). Displays self-peptides sharing a signature motif, namely a Glu at position 2 and a Leu anchor residue at the C-terminus (PubMed:18991276). Allele B*41:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ala or Pro anchor residues at the C-terminus.Allele B*44:02: Presents immunodominant viral epitopes derived from EBV/HHV-4 EBNA4 (VEITPYKPTW) and EBNA6 (AEGGVGWRHW, EENLLDFVRF), triggering memory CD8-positive T cell response (PubMed:9620674, PubMed:18991276). Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Phe, Tyr or Trp anchor residues at the C-terminus (PubMed:18991276). Allele B*45:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ala or Pro anchor residues at the C-terminus.Allele B*46:01: Preferentially presents nonameric peptides sharing a signature motif, namely Ala and Leu at position 2 and Tyr, Phe, Leu, or Met anchor residues at the C-terminus. The peptide-bound form interacts with KIR2DL3 and inhibits NK cell cytotoxic response in a peptide-specific way. Allele B*47:01: Displays self-peptides sharing a signature motif, namely an Asp at position 2 and Leu or Met anchor residues at the C-terminus. Allele B*49:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ile or Val anchor residues at the C-terminus. Allele B*50:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ala or Pro anchor residues at the C-terminus. Allele B*51:01: Presents an octomeric HIV-1 epitope derived from gag-pol (TAFTIPSI) to the public TRAV17/TRBV7-3 TCR clonotype, strongly suppressing HIV-1 replication.Allele B*54:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Ala anchor residue at the C-terminus. Allele B*55:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Ala anchor residue at the C-terminus. Allele B*56:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Ala anchor residue at the C-terminus. Allele B*57:01: The peptide-bound form recognizes KIR3DL1 and inhibits NK cell cytotoxic response. Allele B*67:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Leu anchor residue at the C-terminus. </p></div> <div class="clear"></div> <div class="detail-label"><p>Chromosomal Localization:</p></div> <div class="detail-value"><p>6p21.33</p></div> <div class="clear"></div> <div class="detail-label"><p>Accession Number:</p></div> <div class="detail-value"><p>NP_005505.2</p></div> <div class="clear"></div> <div class="detail-label"><p>UniProt Accession Number:</p></div> <div class="detail-value"><p>P01889</p></div> <div class="clear"></div> <div class="detail-label"><p>DNA Source:</p></div> <div class="detail-value"><p>N/A</p></div> <div class="clear"></div> <div class="detail-label"><p>Immunogen:</p></div> <div class="detail-value"><p>Synthetic Peptide</p></div> <div class="clear"></div> <div class="detail-label"><p>Vector Name:</p></div> <div class="detail-value"><p>N/A</p></div> <div class="clear"></div> <div class="detail-label"><p>Extinction Coefficient:</p></div> <div class="detail-value"><p></p></div> <div class="clear"></div> <div class="detail-label"><p>Buffers:</p></div> <div class="detail-value"><p></p></div> <div class="clear"></div> <div class="detail-label sequence"><p>Expressed Sequence:</p></div> <div class="detail-value sequence"> <p><span class="format-sequence">Immunized with APWIEQEGPEYWDGETR and APWIEQEGPEYWD<br />R, but also recognizes APWIEQEGPEHWDR and APWVEQEG<br />PEYWDR</span></p></div> <div class="clear"></div> <div class="detail-label sequence"><p>Native Sequence:</p></div> <div class="detail-value sequence"><p><span class="format-sequence"></span></p></div> <div class="clear"></div> <div class="detail-label"><p>Calculated Isoelectric Point:</p></div> <div class="detail-value"><p></p></div> <div class="clear"></div> <div class="detail-label"><p>Molecular Weight:</p></div> <div class="detail-value"><p>1870</p></div> <div class="clear"></div> <div class="detail-label"><p>Last Updated:</p></div> <div class="detail-value"><p>07/16/2021</p></div> <div class="clear"></div> </p> <a name="Major Histocompatibility Complex, Class I, B Peptide 1-Links"></a> <h3>Links</h3> <p> <ul class="antigen-url-list"> <li> <strong> EnsEMBL </strong> - <a title="View EnsEMBL link in new window" href="http://useast.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000234745;r=6:31353872-31357188" target="_blank">EnsEMBL HLA-B</a> </li> <li> <strong> Entrez </strong> - <a title="View Entrez link in new window" href="https://www.ncbi.nlm.nih.gov/gene/3106" target="_blank">Entrez HLA-B</a> </li> <li> <strong> Uniprot </strong> - <a title="View link in new window" href="https://www.uniprot.org/uniprot/P01889" target="_blank">Uniprot P01889</a> </li> </ul> </p> <a name="Major Histocompatibility Complex, Class I, B Peptide 1-Characterization"></a> <h5>Characterization Data</h5> <a name="Major Histocompatibility Complex, Class I, B Peptide 1-SOPs"></a> <h3>SOPs</h3> <div class="download-file-container"> <p>No SOPs available.</p> <div class="top-link"><a title="Back to top of page" href="#top">[top]</a></div> </div> </div> </div> <div class="clear"></div> <div id="compareModal" class="reveal" data-reveal aria-labelledby="Compare Antibody Details" aria-hidden="true" role="dialog"> <div id="antibody_compare_details"></div> </div> <input id="mouseX" type="hidden" value="0" /> <input id="mouseY" type="hidden" value="0" /> <div id="compare-original-images"></div>  </div> </div> </div>  <div id="adobe-required"> <h3>Don't have Adobe Reader™? 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The Clinical Proteomic Technologies for Cancer | Details for CPTC-HLA-B-1